I think the article doesn't do any favours to anyone - and is poorly worded, and guaranteed to scare monger and upset.
I am an extended bf-er, so I clearly advocate breastfeeding. I think the defensiveness on both sides comes from the fact that breastfeeding is so clearly promoted as the best way, but unfortunately the resources to help mothers breastfeed are pretty poor. I had a fortunate start, but I won't go into that story, as it doesn't represent the 'norm' - but even with on tap resources, second time around I was confused about my latch, the cracks and bleeding.
It's not easy, it doesn't come naturally very often. The instinct may be natural, but the practice is all about a learning curve that...without assistance...can often fail.
I think, then, the promotion of breast is best can often make people feel defensive about how their breast feeding journey worked out...and people who have breastfed successfully can maybe interpreted as smug.
Naturally, you will get insensitive smug bf-ers -and you will get ff who just think bf-ers are laughable idiots.
I think the key is to be confident and happy in your decision - to formula or to breast feed. If you are truly happy and confident, you should have no reason to denigrate anyone else's choice.
As for the bonding thing, I have nothing to compare to...as both bf...but I think a mother will always, always find a way to forge a close bond. Irrespective of how they feed.